Zero-emission continuously operating low-temperature refrigerating, filtering and cleaning process and device for wine

Abstract

The invention relates to a zero-emission continuously operating low-temperature refrigerating, filtering and cleaning process and device, and belongs to the field of filtering and cleaning. A low-temperature refrigerating unit is connected with an exchanger, a wine body exchanges energy with the exchanger and is conveyed to a filter, the temperature of the wine body in the filter is lower than 10DEG C, wine at an output end of a filter exchanges energy with the exchanger and is then conveyed to a wine body outlet, a clean compressed air source is conveyed to the filter, the residual wine bodyin the filter returns to a wine purifying tank, and a lipid substance held by the filter is contacted with the compressed air, is gradually dissolved and flows into a lipid recovery tank. The devicehas the advantages that the filters are connected in parallel and can be selectively used, the conditions that one filter is used while the other is spared, one filter is used while other filters arespared, multiple filters are used while multiple filters are spared are realized, and the filters operate continuously for 24 hours, and can be respectively cleaned for regeneration or backflushed forregeneration . The clean compressed air is used to clean the filter, the filter does not contain a filter aid, the lipid substance can be recycled, the water is effectively saved, and the zero emission is realized.

Description

technical field [0001] The invention belongs to the field of low-temperature freeze-filter cleaning of wine body; in particular, it relates to a low-temperature freeze-filter clean process and device for wine with zero discharge and continuous operation. Background technique [0002] The wine body contains lipids such as ethyl palmitate, ethyl oleate and ethyl linoleate, which will precipitate when exposed to cold or low temperature during storage, and white flocs will appear, causing the wine to become turbid. At present, all the wine bodies are treated at low temperature through low-temperature refrigeration units and exchangers, and the low-temperature frozen wine bodies enter the diatomite filter to filter out lipids in the wine. Before filtration, diatomite is pre-coated in the filter, and diatomite is added quantitatively during the filtration process to meet the maximum single filtration capacity. When the pressure difference, that is, the pressure difference before ...

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